Monday, June 5, 2023

1995 Pont de Normandie over Seine River at La Harve, France


Street View, Jul 2021

Highway Engineering Discoveries posted
The Pont de Normandie (English: Normandy Bridge) is a cable-stayed road bridge that spans the river Seine linking Le Havre to Honfleur in Normandy, northern France. Its total length is 2,143.21 metres (7,032 ft) – 856 metres (2,808 ft) between the two piers. It is also the last bridge to cross the Seine before it empties into the ocean. Despite being a motorway toll bridge, there is a footpath as well as a narrow cycle lane in each direction allowing pedestrians and cyclists to cross the bridge free of charge.  
[The grade is 6%. I have not been able to find the clearance.]

"With the main span width of 856m, pylon height of 203m (666'), and the total length of 2,141m, the bridge is one of the longest cable-stayed bridges in the world."

3D Satellite

"It was constructed between 1988 and 1995 and when it was built it was the longest bridge in the world. It also held the record for the longest distance between piers for any cable-stayed bridge at the time. The records for the longest distance between piers and overall length were lost, respectively, to the Tatara Bridge in Japan and the Rio-Antirrio bridge, which spans the Gulf of Corinth....The bridge cost $465 million to build. [419 euros [toourisme]] The main reason for building a cable-stay bridge instead of a suspension bridge was for its improved stability in high wind at a competitive cost....On completion, the bridge was tested with a weight of Lorries equal to 16,000 t to assess its load limit and strength....Each cable can be removed individually for maintenance.....The earth's curvature and the immense length of the bridge required that the distance between the pylons had to be 2 cm greater at the top than at the base." [azobuild, this reference has some construction details.]

normandie-tourisme, this page has more photos

2 of 5 photos on bouygues-construction:


1 comment:

  1. Interesting. I've watched the new Gordie Howe International Bridge between Detroit and Windsor go up. The towers are 220 meters tall (722 feet), and the full length is 2.5 km with a main span of 853 meters, so very comparable.